on the dogs of the Pacific islands, ii. [87].

Tylor, Mr., on the prohibition of consanguineous marriages, ii. [122]-[123].

Udders, development of the, ii. [300].

Ulex, double-flowered, ii. [167].

Ulmus campestris and effusa, hybrids of, ii. [130].

Uniformity of character, maintained by crossing, ii. [85]-[90].

Units of the body, functional independence of the, ii. [368]-[371].

Unity or plurality of origin of organisms, i. 13.

Upas poison, ii. [380].

Urea, secretion of, ii. [380].